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Freescale Semiconductor,inc.

Andreas Veneris

Sean Safarpour

Magdy Samuel Abadir

A plurality of diagnosis methods are provided for enabling hardware debugging. A first diagnosis method enables hardware debugging by means of time abstraction. A second-diagnosis method enables hardware debugging by means of abstraction and refinement. A third diagnosis method enables hardware debugging by means of QBF-formulation for replicated functions. A fourth diagnosis method enables hardware debugging by means of a max-sat debugging formulation. A system and computer program for implementing the diagnosis methods is also provide.

Method, system and computer program for hardware design debugging

A plurality of diagnosis methods are provided for enabling hardware debugging. A first diagnosis method enables hardware debugging by means of time abstraction. A second diagnosis method enables hardware debugging by means of abstraction and refinement. A third diagnosis method enables hardware debugging by means of QBF-formulation for replicated functions. A fourth diagnosis method enables hardware debugging by means of a max-sat debugging formulation. A system and computer program for implementing the diagnosis methods is also provide.

A method of optimizing a design is disclosed, wherein a target element contributing to an undesirable characteristic in an original netlist is modified to create a modified netlist. A set of test vectors identifying differences between the original netlist and the modified netlist is identified and used to identify a set of corrections. In one disclosed embodiment, the set of corrections is identified by using an error correction algorithm. Each correction of the set of corrections, when applied to the modified netlist, results in a corrected netlist logically the same as the original netlist. One of the corrections is selected that improves the error characteristic of the original netlist. A final equivalency verification is performed as necessary.

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Toronto, Canada

Andreas Veneris